Chicken-chili Enchiladas

• 12 corn tortillas
• 475 ml sour cream
• 475 ml chicken broth warmed
• 140 gr chicken
• 120 gr monterey jack cheese shredd
• 90 gr onion (finely chopped)
• 80 gr cheddar cheese (shredded)
• 1 package chili with beans
• 1 package enchilada sauce